One of the key themes that emerges from the representation of the mother-son relationship in cinema and literature is the idea of sacrifice. Mothers are often depicted as making sacrifices for their sons, whether it be giving up their own desires and aspirations, or putting their sons' needs before their own. This theme is evident in the novel "The Kite Runner", where Sanaubar's sacrifice for her son Amir is a dominant motif. Similarly, in the film "The Pursuit of Happyness", Chris Gardner's struggle to provide for his son is motivated by his desire to make a better life for him, and to compensate for the absence of his mother.